Facebook was noticeably absent from the roster of social sites heavily involved in the riots.

According to the Twitter stream, several thousand people have taken over 5th and Mission Street and there are currently multiple bonfires at 3rd and King Street. I’m coming across reports of people throwing beer bottles at police and setting a MUNI bus on fire. There’s been talk of a stabbing at the riots at 4th and King Street, which police apparently have under control.